Heavy duty bit, Web construction for strength and durability, 5 percent cobalt for higher heat and abrasion resistance, Best heat resistance for drilling in extremely hard and abrasive materials including stainless steel, titanium and cast iron, 135? split point begins drilling immediately, minimizing bit walk, 50"" diameter, 6"" over-all length, Carded, Length: 8, 58, Width: 0, 5, Height: 1, 88 SKU: JNSN24208